Patents by Inventor Wen'an ZHAO

Wen'an ZHAO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20150156636
    Abstract: Carrier aggregation using unlicensed frequency bands. A primary carrier for communication between a base station (BS) and a wireless user equipment (UE) device may be configured according to a first wireless communication technology. The primary carrier may be on a licensed frequency band. A secondary carrier for communication between the BS and the UE may also be configured according to a first wireless communication technology. The secondary carrier may be on an unlicensed frequency band. Channel conditions for each of multiple possible channels of the unlicensed frequency band may be assessed according to a second wireless communication technology as part of configuring the secondary carrier.
    Type: Application
    Filed: December 3, 2013
    Publication date: June 4, 2015
    Applicant: Apple Inc.
    Inventors: Tarik Tabet, Dawei Zhang, Wen Zhao
  • Patent number: 9049747
    Abstract: A method for facilitating in-device coexistence between wireless communication technologies on a wireless communication device is provided. The method can include transmitting data traffic from the wireless communication device via an aggressor wireless communication technology; determining occurrence of an in-device interference condition resulting from transmission of the data traffic via the aggressor wireless communication technology interfering with concurrent data reception by the wireless communication device via a victim wireless communication technology; and reducing a bit rate of the data traffic transmitted via the aggressor wireless communication technology in response to the in-device interference condition.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: June 2, 2015
    Assignee: Apple Inc.
    Inventors: Wen Zhao, Paul V. Flynn, William S. Burchill, Vinay R. Majjigi, Xiaowen Wang, Syed A. Mujtaba, Kee-Bong Song
  • Publication number: 20150146510
    Abstract: A server system and a control method for a read/write indicator light are disclosed, in which a serial general purpose input/output signal is issued when a read/write action occurs, a bit of effective non-zero data is written into a register when the SGPIO signal has a level change, a content of the register is checked out every predetermined period, and a drive signal is outputted to drive the read/write indicator light to blink when the data in every bit of the register is not all non-zero, whereby achieving in a technical efficacy of promoting recognizability of the read/write indicator light.
    Type: Application
    Filed: April 18, 2014
    Publication date: May 28, 2015
    Applicants: INVENTEC (PUDONG) TECHNOLOGY CORPORATION, INVENTEC CORPORATION
    Inventor: Tian-Wen ZHAO
  • Publication number: 20150092673
    Abstract: A method for customized coexistence management based on user behavior is disclosed. The method can include a wireless communication device determining a behavior pattern of a user of the wireless communication device; assigning a priority level to each of a first application and a second application based on the behavior pattern; using a first wireless communication interface to support data communication for the first application; using a second wireless communication interface to support data communication for the second application concurrent with data communication for the first application over the first wireless communication interface; and managing in-device coexistence of the first wireless communication interface and the second wireless communication interface during concurrent data communication for the first application and the second application based on the priority level assigned to the first application and the priority level assigned to the second application.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: Apple Inc.
    Inventors: Ajoy K. Singh, Wen Zhao
  • Publication number: 20150095955
    Abstract: An electronic device uses one antenna to wirelessly communicate information with two different wireless networks via concurrent connections associated with different radio access technologies. More specifically, the electronic device may receive video via a first of the connections using a multicast communication protocol. In order to maintain the second connection, the electronic device may switch, for a time interval, from the first connection to the second connection during switching events. This switching can disrupt displayed content associated with the video. To prevent this disruption, in response to a trigger that warns of an upcoming switching event, the electronic device accesses a portion of the video in a buffer during the time interval associated with the switching event. When the communication circuit switches back to the first connection after the switching event, the electronic device reverts to the video communication using the multicast communication protocol.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: Apple Inc.
    Inventors: Ajoy K. Singh, Tarik Tabet, Wen Zhao, Najeeb M. Abdulrahiman
  • Patent number: 8996044
    Abstract: Avoiding conflicts between radio access technologies (RATs) in a device configured to operate according to multiple RATs. The device may be operated in a discontinuous reception (DRX) mode according to each of a first RAT and a second RAT using a shared radio. It may be determined that a conflicting wakeup time is scheduled according to DRX cycles of the first and second RATs. A subscriber identity of the device may be changed in response to determining that a conflicting wakeup time is scheduled according to DRX cycles of the first and second RATs.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 31, 2015
    Assignee: Apple Inc.
    Inventors: Longda Xing, Wen Zhao, Jianxiong Shi
  • Publication number: 20150045081
    Abstract: A method and apparatus for creating a communication group for a given type of communication using a mobile station for initiating communication sessions of the given type among mobile stations are disclosed. A group definition for determining members of the new communication group is composed from one or more contacts from the electronic address book such as by selecting from the address book using the mobile station. The group definition may include logical operators to define the combination of contacts. A name may be specified for the new group. The assembly of the list of members may be performed by the mobile station, a communication network server for maintaining groups (e.g. a Group and List Management Server (GLMS)) or an email server.
    Type: Application
    Filed: October 23, 2014
    Publication date: February 12, 2015
    Inventors: Runbo FU, Wen ZHAO, Xin JIN
  • Publication number: 20150031367
    Abstract: An apparatus, system, and method for performing handover of a mobile station (MS) between a base station (BS) and an access point (AP) are described. In one embodiment, the MS may receive one or more threshold values for reporting measurements to the BS. The MS may convert the threshold values to device-specific threshold values. The MS may determine one or more network quality values associated with the AP. The MS may compare the network quality values to the device-specific threshold values. In response to the network quality values exceeding the device-specific threshold values, the MS may convert the network quality values to calibrated network quality values. The MS may provide the calibrated network quality values. The MS may perform handover from the BS to the AP based on providing the calibrated network quality values to the BS.
    Type: Application
    Filed: July 15, 2014
    Publication date: January 29, 2015
    Inventors: Ajoy K. Singh, Krisztian Kiss, Wen Zhao
  • Publication number: 20150023284
    Abstract: A single chip mobile wireless device capable of receiving and transmitting over one wireless network at a time maintains registration on two wireless communication networks that each use different communication protocols in parallel. Periodically, the mobile wireless device tunes one or more receivers from a first wireless network to a second wireless network in order to listen for paging messages addressed to the mobile wireless device from the second wireless network. The first wireless network suspends allocation of radio resources to the mobile wireless device based on receipt of a suspension message from the mobile wireless device, or based on knowledge of a paging cycle for mobile wireless device in the second wireless network, or based on detection of an out of synchronization condition with the mobile wireless device.
    Type: Application
    Filed: July 28, 2014
    Publication date: January 22, 2015
    Inventors: Wen Zhao, Syed A. Mujtaba, Xiaowen Wang, Vinay R. Majjigi, Isabel G. Mahe
  • Publication number: 20150003321
    Abstract: A device and method transmits a data block over a wireless coexistence interface (WCI) pathway. The method includes generating a data block for transmission between a cellular chip and an Industrial, Scientific, and Medical (ISM) chip. The method includes converting the data block into messages, the messages having a format corresponding to the WCI pathway, the WCI pathway directly communicatively connecting the cellular chip and the ISM chip, the format including an indication of a message type. The method includes transmitting the messages over the WCI pathway. The method includes generating the data block based upon a concatenation of the messages.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: William BURCHILL, Paul FLYNN, Wen ZHAO
  • Patent number: 8923898
    Abstract: Maintaining communication of a wireless device and using a plurality of wireless communication technologies. A first paging message schedule may be determined for maintaining communication between the wireless device and a first base station associated with a first wireless communication technology. Similarly, a second paging message schedule may be determined for maintaining communication between the wireless device and a second base station associated with a second wireless technology. Additionally, a scheduling conflict may be determined between the first paging message schedule and the second paging message schedule. Accordingly, communication with the first base station may be switched to a third base station using the first wireless technology in response to determining that there is a scheduling conflict.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: December 30, 2014
    Assignee: Apple Inc.
    Inventors: Longda Xing, Jianxiong Shi, Wen Zhao
  • Publication number: 20140370814
    Abstract: The present invention provides a method and system for connecting wireless devices by receiving from a user's wireless device an environmental sound of the environment where the user is located. The method also includes obtaining a list of other wireless devices that are in the same environment as the user, according to the environmental sound and sending the list of wireless devices to the user for the user to select from the list of wireless devices one or more wireless devices for connecting.
    Type: Application
    Filed: November 8, 2012
    Publication date: December 18, 2014
    Inventors: Zheng Bi, Jia Yi Shen, Shi Wei, Xiao Feng Yu, Ya Wen Zhao
  • Publication number: 20140362162
    Abstract: In video conferencing over a radio network, the radio equipment is a major power consumer especially in cellular networks such as LTE. In order to reduce the radio power consumption in video conferencing, it is important to introduce an enough radio inactive time. Several types of data buffering and bundling can be employed within a reasonable range of latency that doesn't significantly disrupt the real-time nature of video conferencing. In addition, the data transmission can be synchronized to the data reception in a controlled manner, which can result in an even longer radio inactive time and thus take advantage of radio power saving modes such as LTE C-DRX.
    Type: Application
    Filed: August 21, 2014
    Publication date: December 11, 2014
    Inventors: Chris Y. Chung, Wen Zhao, Luciano M. Verger, Hyeonkuk Jeong, Gang Lu, Srinivasan Vasudevan, Xiaosong Zhou, Hsi-Jung Wu, James O. Normile
  • Patent number: 8909277
    Abstract: A method and apparatus for creating a communication group using an electronic address book to facilitate Push-to-Talk over Cellular (PoC) group communication sessions are disclosed. A group definition for determining members of the new PoC Group is composed from one or more contacts from the electronic address book such as by selecting from the address book using the mobile station. The group definition may include logical operators to define the combination of contacts. A name may be specified for the new group. The assembly of the PoC Group list of members may be performed by the mobile station, a communication network server for maintaining PoC Groups (e.g. a Group and List Management Server (GLMS)) or an email server.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: December 9, 2014
    Assignee: BlackBerry Limited
    Inventors: Runbo Fu, Wen Zhao, Xin Jin
  • Patent number: 8902856
    Abstract: A method for assisting a wireless communication device to return to a first network from a second network subsequent to termination of a voice call for which a Circuit Switched Fallback procedure was performed to transition from the first network to the second network for servicing of the voice call is provided. The method can include preventing transmission of a data flow for a data service after termination of the voice call. The method can further include searching for the first network while transmission of the data flow is prevented. If the first network is found, the method can additionally include reverting to the first network and servicing the data service on the first network. If the first network is not found, the method can also include remaining on the second network and servicing the data service on the second network.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: December 2, 2014
    Inventors: Longda Xing, Jianxiong Shi, Wen Zhao
  • Publication number: 20140293959
    Abstract: A method for seamless session mobility on wireless communication device including a first physical interface and a second physical interface is provided. The method can include a wireless communication device anchoring a data session for an application to a logical interface associated with the first physical interface. The method can further include the wireless communication device routing data for the data session sent to the logical interface by the application to the second physical interface for transmission via the second physical interface in an instance in which the wireless communication device has an active connection to a radio access network via the second physical interface.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 2, 2014
    Applicant: Apple Inc.
    Inventors: Ajoy K. Singh, Wen Zhao, Najeeb Abdulrahiman
  • Publication number: 20140269562
    Abstract: A wireless communication system is presented for multiple wireless technology coexistence in a mobile device. A method according to this application might include obtaining one or more transmit allocation parameters for a wireless transmission via a first radio technology at a first wireless processor and the preparing to receive wireless data via a second radio technology at a second wireless processor. Next, the exemplary method might request that the wireless transmission be deferred, followed by deciding whether to grant the deferral request based at least on the one or more transmit allocation parameters.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Apple Inc.
    Inventors: William S. Burchill, Wen Zhao, Huanyu Chen, Zhaojun Cheng, Weiping Dou
  • Patent number: 8830844
    Abstract: A method for delaying network reselection by a wireless communication device following a call failure is provided. The method can include determining an initiation of a voice call while connected to a first network. The method can further include participating in a circuit switched fallback (CSFB) procedure to transition from the first network to a second network in response to initiation of the voice call. The method can additionally include determining an occurrence of a call failure of the voice call. The method can also include, responsive to the call failure, barring reselection to the first network for a threshold barring period.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: September 9, 2014
    Assignee: Apple Inc.
    Inventors: Arun G. Mathias, Jianxiong Shi, Jinghua Ling, Longda Xing, Wen Zhao, Gencer Cili, Puneet Mishra
  • Patent number: 8830892
    Abstract: In video conferencing over a radio network, the radio equipment is a major power consumer especially in cellular networks such as LTE. In order to reduce the radio power consumption in video conferencing, it is important to introduce an enough radio inactive time. Several types of data buffering and bundling can be employed within a reasonable range of latency that doesn't significantly disrupt the real-time nature of video conferencing. In addition, the data transmission can be synchronized to the data reception in a controlled manner, which can result in an even longer radio inactive time and thus take advantage of radio power saving modes such as LTE C-DRX.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: September 9, 2014
    Assignee: Apple Inc.
    Inventors: Chris Y. Chung, Wen Zhao, Luciano M. Verger, Hyeonkuk Jeong, Gang Lu, Srinivasan Vasudevan, Xiaosong Zhou, Hsi-Jung Wu, James O. Normile
  • Patent number: 8831655
    Abstract: Methods and apparatus to mitigate interference among multiple wireless subsystems of a wireless communication device are described. A host processor obtains configurations for a plurality of wireless subsystems and evaluates whether potential or actual coexistence interference exists between two or more of the wireless subsystems. The host processor provides configuration information and link quality reporting parameters to and obtains link quality reports from at least two wireless subsystems. When link quality for at least one wireless subsystem fails a set of link quality conditions, the host processor adjusts data requirements for applications that communicate through one or more of the wireless subsystems and/or adjusts radio frequency operating conditions for one or more of the wireless subsystems to mitigate interference among the wireless subsystems.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: September 9, 2014
    Assignee: Apple Inc.
    Inventors: William S. Burchill, Paul V. Flynn, Vinay R. Majjigi, Xiaowen Wang, Kee-Bong Song, Syed A. Mujtaba, Wen Zhao